Physiological and Molecular Regulation of Aluminum Resistance in Woody Plant Species

Reyes‐Díaz, Marjorie; Inostroza‐Blancheteau, Claudio; Rengel, Zed

doi:10.1007/978-3-319-19968-9_10

Cited by 6 publications

(1 citation statement)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exudation of mucilage also binds Al ions and results in the exclusion of Al and its detoxification [ 21 – 23 ]. Mechanism of Al tolerance encompasses processes that result in chelation of cytosolic Al 3+ with organic ligands, sequestration into the vacuole, or transport of Al 3+ to less-sensitive regions of the plant [ 24 – 26 ]. Recovery from damages following exposure to Al toxicity is mediated by the detoxification of the reactive oxygen species (ROS) through ROS-detoxifying enzymes, such as glutathione S-transferases, peroxidases, and superoxide dismutases that confer Al tolerance [ 20 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Aluminum Responsive Genes in Flax (Linum usitatissimum L.)

Krasnov

Dmitriev

Zyablitsin

et al. 2019

BioMed Research International

View full text Add to dashboard Cite

Flax (Linum usitatissimum L.) is a multipurpose crop which is used for the production of textile, oils, composite materials, pharmaceuticals, etc. Soil acidity results in a loss of seed and fiber production of flax, and aluminum toxicity is a major factor that depresses plant growth and development in acid conditions. In the present work, we evaluated gene expression alterations in four flax genotypes with diverse tolerance to aluminum exposure. Using RNA-Seq approach, we revealed genes that are differentially expressed under aluminum stress in resistant (Hermes, TMP1919) and sensitive (Lira, Orshanskiy) cultivars and selectively confirmed the identified alterations using qPCR. To search for differences in response to aluminum between resistant and sensitive genotypes, we developed the scoring that allowed us to suggest the involvement of MADS-box and NAC transcription factors regulating plant growth and development and enzymes participating in cell wall modifications in aluminum tolerance in flax. Using Gene Ontology (GO) enrichment analysis, we revealed that glutathione metabolism, oxidoreductase, and transmembrane transporter activities are the most affected by the studied stress in flax. Thus, we identified genes that are involved in aluminum response in resistant and sensitive genotypes and suggested genes that contribute to flax tolerance to the aluminum stress.

show abstract